import Bscroll from 'better-scroll';
<template>
<div>
    <div class="search">
        <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
    </div>
    <div class="serch-content" ref="search" v-show="keyword">
      <ul>
        <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">{{item.name}}</li>
        <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
      </ul>
    </div>
    </div>
</template>
<script>
import Bscroll from 'better-scroll'
export default {
  name:'CitySearch',
  props:{
    cities:Object
  },
  data(){
    return{
      keyword:'',
      list:[],
      timer:null
    }
  },
  computed:{
    hasNoData(){
      return !this.list.length
    }
  },
  watch:{
    keyword(){
      if(this.timer){
        clearTimeout(this.timer)
      }
      if(!this.keyword){
        this.list = []
        return
      }
      this.timer = setTimeout(()=>{
        const result = []
        for (let i in this.cities){
          this.cities[i].forEach(value => {
            if(value.spell.indexOf(this.keyword)>-1 || value.name.indexOf(this.keyword)>-1){
              result.push(value)
            }
          });
        }
        this.list = result
      },100)
    }
  },
  mounted (){
    this.scroll = new Bscroll(this.$refs.search)
  },
  methods:{
     handleCityClick(city){
      this.$store.commit('changeCity',city)
      this.$router.push('/')
    }
  }
}
</script>
<style scoped>
  .search{
    height: .72rem;
    padding:0 .1rem;
    background: #00bcd4;
  }
  .search-input{
    height: .62rem;
    line-height: .62rem;
    box-sizing: border-box;
    padding: 0 .1rem;
    width: 100%;
    text-align: center;
    border-radius: .06rem;
    color:#666;
  }
  .serch-content{
    position: absolute;
    overflow: hidden;
    top:1.58rem;
    left:0;
    right:0;
    bottom: 0;
    z-index: 1;
    background: #eee;
  }
  .search-item{
    line-height: .62rem;
    padding-left:.2rem;
    color:#666;
     background: #fff;
  }
</style>


